My very first week of teaching our classes we were learning about electromagnetic waves. It just so happened the Police Dept my husband worked at got the state of the art speed measurement device (speed gun) which uses different types of electromagnetic waves and energy. He was able to come out to our school for the day and so all the classes how they worked. He also showed the student was how physical science can relate to Law Enforcement Here are some pictures from that day. 

Lab
LabLab
Lab
Lab
Lab
Lab
Lab
Lab
Lab dayLabLab